Danfoss MCB 152 Operating Instructions Manual
Also see for VLT series: Service manualInstallation guideOperating instructionsService manualInstallation guide
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Contents
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4.5.1 Cabling RequirementsCAUTIONIf a short circuit occurs, it is no longer possible to switchoff the frequency converter with terminal 37.NOTICEAll signals to safety option must be PELV supplied andcomply with EN IEC 60204.Follow these guidelines to ensure a proper wiring:• Use appropriate wiring to prevent short circuitsto a supply line or between the inputs.• Use separate multi-core cable for supply voltageto avoid short circuits between the cable fromthe output (S37) and the 24 V DC supply line.• Connect screens at both ends to the groundedenclosures through a good electrical connectionand through a large surface area.• Connect cable screens as close as possible to thecabinet cable entry.• If possible, intermediate terminals should notinterrupt cable screens.• Retain cable screens for both power cables anddata cables using the appropriate EMC clamps.Ensure that the screen connection for controlcables has a low induction.NOTICEIf short circuits and cross circuits can be expected withsafety-related signals, and if they are not detected byupstream devices, protected cable installation is requiredas per EN ISO 13849-2.4.5.2 Connector Pin Assignment1 2 3 4 5 6 7 8 9 10 11 12130BC315.10Pin Name Description1 DI1 A Digital Input 1 A channel2 GND Ground3 DI1 B Digital Input 1 B channel5 DI2 A Digital Input 2 A channel6 GND Ground8 DI2 B Digital Input 2 B channel9 GND Ground10 24 V Power output11 GND Ground12 S37 Safe outputIllustration 4.3 Connector Pin Assignment, MCB 1524.5.3 Wiring Procedures1. Remove the jumper wire between controlterminals 37 and 12/13 (24 V).NOTICECutting or breaking the jumper is not sufficient to avoidshort circuiting.12/13 37130BE099.10Illustration 4.4 Jumper between Terminals 12/13 (24 V) and 372. Connect the safe output S37 on the safety optionto terminal 37 on the control card (maximumlength of this wire is 10 cm).Installation Safety Option MCB 15214 Danfoss A/S © 10/2014 All rights reserved. MG37F10244 |
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